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____ [38]
3 years ago
6

Sergio passes by a bike store on Monday and sees his dream bike in the window. It cost 120 . He passes by on Wednesday and is th

rilled to see that is marked down by 1/4 . What is the new price of the bike
Mathematics
1 answer:
insens350 [35]3 years ago
3 0

Answer:

90

Step-by-step explanation:

120 - (120/4)

120 - 30 = 90

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2x³-8=0<br> How do I solve this problem ?
wlad13 [49]

Answer:

x=2^{\frac{2}{3}}

Step-by-step explanation:

1) Add 8 to both sides.

<em />2x^3=8

2) Divide both sides by 2.

x^3=\frac{8}{2}

3) Simplify \frac{8}{2} to 4.

x^3=4

4) Take the cube root of both sides.

x=\sqrt[3]{4}

5) Rewrite 4 as 2².

x=\sqrt[3]{2^2}

6) Use this rule: {({x}^{a})}^{b}={x}^{ab}.

x=2^{\frac{2}{3}}

Decimal Form: 1.587401

__________________________________________

Check the answer:

2x^3-8=0

1) Let x=2^\frac{2}{3}.

2(2^{\frac{2}{3} })-8=0

2) Use this rule: (x^a)^b=x^{ab}.

2\times2^{\frac{2\times3}{3} } -8=0

3) Simplify 2 * 3 to 6.

2\times2^{\frac{6}{3} } - 8  =0

4) Simplify 6/3 to 2.

2\times2^2-8=0

5) Use Product Rule: x^ax^b=x^{a+b}.

2^3-8=0

6) Simplify 2^3 to 8.

8 - 8 = 0

7) Simplify 8 - 8 to 0.

0 = 0

Thank you,

Eddie

5 0
1 year ago
Dave's dog is 1 decade and 2 years 9months 3days old Dave is half as old as his dog how old is dave​
victus00 [196]

Answer:

dave is 6 years old depending on which way you are halfling

Step-by-step explanation: the dog is 12 years and 9 months old

dave would be 6 i believe unless its going the other way then i have no clue

a decade is 10 years btw.

3 0
3 years ago
Read 2 more answers
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pochemuha

Answer:

x=-14

Step-by-step explanation:

4 0
3 years ago
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Penny divides 1 by 8 and that the quotient is 0.125. What is the quotient rounded to the nearest hundred
zheka24 [161]
The two is in the hundreth place
Look at the number next to it, it's a five. Five rounds 2 to 3. 
Your answer is 0.13
5 0
3 years ago
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2. If x1 is 3 and x2 is 2, how would you use the numbers in the slope formula?​
torisob [31]

Answer:

m = y2 - y1 / 2 - 3

Step-by-step explanation:

I believe it is asking you to plug in the numbers into the equation.

3 0
3 years ago
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